{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98019",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:19:56.069Z",
        "datePublished": "2026-09-25T10:23:40.303Z",
        "dateUpdated": "2026-10-21T12:54:04.100Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:54:04.100Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: mark a NULL call argument precise\n\ncheck_func_arg() allows bpf_register_is_null() for nullable arguments\nw/o marking the underlying scalar register precise. Hence a checkpoint\ncreated on such a path would prune against arbitrary scalar value.\n\ncheck_helper_call() enforces second parameter of the\nbpf_get_local_storage() to be zero, w/o marking the underlying scalar\nregister precise. Hence a checkpoint created on such a path would\nprune against arbitrary scalar value.\n\nGrouping these two into one patch, as they share the same fixes tag."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c",
                        "tools/testing/selftests/bpf/progs/verifier_subprog_precision.c"
                    ],
                    "versions": [
                        {
                            "version": "b5dc0163d8fd78e64a7e21f309cf932fda34353e",
                            "lessThan": "febbb66e682d8328f7c5bcbdd5e4291abab2e858",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b5dc0163d8fd78e64a7e21f309cf932fda34353e",
                            "lessThan": "627089c278df58749f25686c6a3caf7e181b5951",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b5dc0163d8fd78e64a7e21f309cf932fda34353e",
                            "lessThan": "b1fe6379e401b8ce0f561cb4d84af2b70b4343c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b5dc0163d8fd78e64a7e21f309cf932fda34353e",
                            "lessThan": "69a9ad004ccf5d45e534c7d503f47f643abe64b7",
                            "status": "affected",
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                        {
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                            "lessThan": "1a3a10b030c96ea88868ccc060a16827c01eaa5a",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/bpf/verifier.c",
                        "tools/testing/selftests/bpf/progs/verifier_subprog_precision.c"
                    ],
                    "versions": [
                        {
                            "version": "5.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.57",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.12.114"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "6.18.57"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/febbb66e682d8328f7c5bcbdd5e4291abab2e858"
                },
                {
                    "url": "https://git.kernel.org/stable/c/627089c278df58749f25686c6a3caf7e181b5951"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b1fe6379e401b8ce0f561cb4d84af2b70b4343c3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/69a9ad004ccf5d45e534c7d503f47f643abe64b7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1a3a10b030c96ea88868ccc060a16827c01eaa5a"
                }
            ],
            "title": "bpf: mark a NULL call argument precise",
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                "engine": "bippy-1.2.0"
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        }
    }
}